L4957AD1.8 datasheet(6/12 Pages) STMICROELECTRONICS

Part #	L4957AD1.8

Description	Up to 5A ULDO linear regulator

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Electrical characteristics

L4957A

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4

Electrical characteristics

Table 4. Electrical Characteristcs (TJ = 25°C, VIN = 5V, unless otherwise specified)

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

VIN

Operating Supply

Voltage

3

14

V

VO

Output Voltage

3.15V < VIN < 5.25V; IO = 0.1A

1.485

1.5

1.515

V

VIN = 3.3V ±5%; 0.1A < IO < 5A

(1)

1.

Specifications referred to TJ from 0°C to +125°C.

1.47

1.5

1.53

V

VIN = 3.3V ±5% IO = 0.1A

VIN = 5V ±5%

1.782

1.8

1.818

V

VIN = 3.3V ±5% (0.1A < IO< 4.5A)

(1)

VIN = 5V ±5% 0.1A < IO< 5A

1.764

1.8

1.836

V

VIN = 3.3V ±5% IO = 0.1A

VIN = 5V ±5%

2.475

2.5

2.525

V

VIN = 3.3V ±5% (0.1A < IO< 2.2A)

(1)

VIN = 5V ±5% 0.1A < IO< 5A

2.45

2.5

2.55

V

VIN = 5V ±5% IO = 0.1A

3.267

3.3

3.333

V

VIN = 5V ±5% 0.1A < IO< 5A

(1)

3.234

3.3

3.366

V

RDS(on)

Drain-Source ON

Resistance

(1)

300

m

Ω

IO

Current Limiting

(1)

5.1

6.3

7.5

A

IQ

Quiescent Current

3V < VIN< 14V

(1)

0.6

2

mA

Ripple Rejection

f = 120Hz, IO = 1A

VIN = 5V ∆VIN = 2VPP

60

75

dB

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